<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>

<body>
    <script>
        let obj = {
            name: 'zs'
        }
        obj.age = 19

        class Person {
            constructor(name, age, sex) {
                this.name = name;
                this.age = age;
                this.sex = sex;
            }

            travel() {
                console.log('go to other city')
            }
        }

        let zn1 = new Person('zs', 35, 'normal');
        console.log(zn1)
        zn1.travel()

        class Man {
            constructor(name, age, hobby) {
                this.name = name;
                this.age = age;
                this.hobby = hobby
            }

            play() {
                console.log('have fun everyday')
            }
        }
    </script>
</body>

</html>